Refractor for coexbasetest and performancebasetest.

1.Adding discovered devices list and fping results to json file.
2.Seperating throughput calculation from set_attenuation_and_run_iperf function.
3.Making changes in the test suite for discovered devices.
4.Seperating result parser function to fix UDP download issue.

Test: This CL
Bug: 68695166
Change-Id: Ic58b14578105416a08967b0912eac907d80c78f0
13 files changed
tree: 335876045d0560b123ef36fa0fa8b36a8a91e889
  1. acts/
  2. tools/
  3. wts-acts/
  4. Android.mk
  5. PREUPLOAD.cfg